He missed his entire junior season with a patella injury, which caused Pac-12 college programs to stop recruiting him.

[9] In his sophomore season, Johnson entered the starting lineup and averaged 7.8 points, 7.9 rebounds and 1.5 blocks per game.

[10] As a junior, Johnson averaged eight points, 8.5 rebounds and 2.4 blocks per game,[11] and the Scarlet Knights were selected for the 2021 NCAA tournament.

[15] He filled in for starting forward Cody Riley, who suffered a knee injury in the season opener, which kept him out for almost two months.

[20] While attending Rutgers University, he founded BLKdev, a nonprofit organization that aims to support black students interested in science, technology, engineering, and mathematics.